I suggest you ...

Add support for nurses, particularly in pediatrics

OK, I know that anyone can use fiveyearitch.com, and enter tags as we want, but I see it is focused around tech people. I'm a pediatric nurse, thinking I should find another job elsewhere, and I would love it it you specifically build up the employer-base in my field as well.

You should know that there is a lot of demand for pediatric nurses and you could do well with this idea.